Grunt fish (Isaki)

Name (Japanese) Grunt fish (Isaki / イサキ / 伊佐木)
Overall Rating Flavor: ★★★☆☆
Texture: ★★★★☆
Popularity: ★★★☆☆
Reference Price Value: ★★★☆☆
Price range: $10~$18/lb
Best Season Late spring to early summer
Did you know? Isaki’s bones are quite hard and sharp for the size of the fish.
Category Details
1. Overview Kanji Name: 伊佐木, 伊佐幾, 鶏魚 (Isaki)
English Name: Grunt fish
Scientific Name: Parapristipoma trilineatum
Classification:
• Kingdom: Animalia
• Phylum: Chordata
• Class: Actinopterygii
• Order: Perciformes
• Family: Haemulidae
• Genus: Parapristipoma
• Species: P. trilineatum
Average Size: 25–40 cm
Key Features: White, tender flesh with mild sweetness; skin often seared to enhance aroma
2. Habitat & Distribution Coastal waters of Japan, Korea, and Taiwan.
Prefers rocky reefs and sandy bottoms.
Common in warmer, temperate waters.
3. Seasonality Best season is late spring to early summer.
Peak flavor when fat content increases before spawning.
4. Sushi Ingredient Profile Common Uses: Nigiri, sashimi, lightly seared (aburi), grilled
Flavor: Mild sweetness with a clean aftertaste
Texture: Soft yet firm, delicate mouthfeel
Fat Content: Moderate; increases in early summer
5. Preparation & Craftsmanship Often served with skin lightly seared to release aromatic oils.
Can be prepared as sashimi to enjoy natural sweetness.
Careful handling preserves delicate flesh and translucent appearance.
6. Recommended Pairings Sushi Rice: Light vinegar seasoning to match subtle flavor
Condiments: Wasabi, sea salt with yuzu, light soy sauce
Drinks: Dry sake, crisp white wine, sparkling water
7. Nutritional Information Rich in high-quality protein and omega-3 fatty acids.
Contains vitamin D and selenium for immune support.
8. Trivia & Cultural Notes Known as “the summer white fish” in Japan.
Highly valued in sushi and kaiseki cuisine.
Skin-on aburi is a signature preparation in high-end sushi restaurants.
9. Recommended Sushi Styles • Isaki nigiri with lightly seared skin
• Fresh sashimi with a sprinkle of sea salt
• Aburi isaki brushed with soy sauce
• Grilled isaki fillet served with yuzu kosho

Other Information